Update 'Migrating from loose files'

Migrating-from-loose-files.md

@@ -1,5 +1,17 @@
 > **NOTE**: If this is your first time migrating a mod, I strongly suggest going through [Building your first mod](Building-your-first-mod) once, to play around with and get a feel for the new file structure, as well as how to use DTMT to build the mod bundles.
 
+## Automatically
+
+For most projects, the built-in migration command should be enough to convert a mod to the DTMT project structure:
+
+1. Install DTMT and add its location to your PATH variable.
+2. Determine a directory to migrate the mod to. The migration will create a new folder named after the mod here. In-place migrations are not supported.
+   E.g.: `C:\projects`
+3. Locate the `.mod` file for your mod.
+4. In a Command Prompt (or similar terminal application, e.g. Microsoft Terminal), execute `dtmt migrate C:\path\to\my_mod.id C:\projects`
+
+## Manually
+
 To migrate Lua files from a loose file structure to something that can be built into mod bundles with DTMT, the following is needed:
 
 - a `dtmt.cfg` that defines the mod's metadata, entry points and packages